Waterproof connecting structure of anti-floating anchor rod node

Abstract

The utility model provides a waterproof connecting structure of an anti-floating anchor rod node, and belongs to the technical field of anti-floating anchor rod construction of constructional engineering. The structure comprises an anti-floating anchor rod, a waterproof connecting assembly, a polymer cement waterproof mortar layer and a fine aggregate concrete protection layer. The lower end of the anti-floating anchor rod is anchored in the concrete anchoring body of the basement structure layer, and the upper end penetrates through the anchoring plate through hole; the waterproof connecting assembly is composed of an anchoring plate and a pre-buried support, the lower end of the pre-buried support is pre-buried in the concrete anchoring body, and the anchoring plate is fixed between the supports. The concrete cushion layer and the anchoring body are sealed through polyurethane sealant, and a waterproof mortar layer, a self-adhesion waterproof roll and a reinforced fine aggregate concrete protection layer are sequentially laid on the concrete cushion layer and the anchoring body to form a totally-closed waterproof system. Through the design of multi-layer collaborative protection and the rigid support, the problems that a traditional joint is prone to leakage, and the anchor plate displaces are solved, the horizontal displacement resistance is improved, the construction efficiency is improved, and the anti-floating joint is suitable for anti-floating projects such as basements and basement and has high waterproofness, structural stability and economical efficiency.

Description

Technical Field

[0001] This utility model relates to the field of construction technology for anti-buoyancy anchor bolts in building engineering, and in particular to a waterproof connection structure for improving the installation stability and waterproofing effect of the anchor plate of the anti-buoyancy anchor bolt. Background Technology

[0002] In building construction, the traditional method for anchoring basement anti-buoyancy anchors involves laying prestressed circular anchor plates on a concrete foundation, followed by the application of waterproofing and protective layers. However, traditional anchor plates lack effective fixing devices and are susceptible to displacement due to horizontal stress, leading to damage to the waterproofing layer and significant leakage risks.

[0003] Patent application number CN202311859702.0 discloses a waterproof construction method for the connection between a prestressed anti-buoyancy anchor and a raft slab, relating to the field of waterproofing technology for anti-buoyancy anchors. This utility model employs seven waterproofing measures: waterproof coating, waterproof reinforcement layer, waterproof membrane, water-swellable waterproof rubber collar, asphalt waterproof sealant, water-swellable sealing strip, and impermeable concrete. These measures address various leakage risks that may occur with the anti-buoyancy anchor, effectively preventing water seepage at the anchor point and improving the waterproofing quality of the raft slab.

[0004] Although the aforementioned patented technologies include some improvements (such as the combination of pad and nut), they still do not solve the problem of insufficient anchor plate stability, especially in terms of integrated waterproofing construction and cost control. Utility Model Content

[0005] The purpose of this invention is to provide a waterproof connection structure for anti-buoyancy anchor bolt nodes to solve the problems mentioned in the background art.

[0006] (1) How to solve the problems of unstable installation and poor waterproofing effect of traditional anti-buoyancy anchor plate.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A waterproof connection structure for anti-buoyancy anchor bolt nodes;

[0009] This includes anti-buoyancy anchors, waterproof connection components, polymer cement waterproof mortar layer, and fine stone concrete protective layer;

[0010] The lower end of the anti-buoyancy anchor extends into the concrete anchor body of the building's basement structure layer, and a concrete pad layer is also poured on the side of the concrete anchor body of the building's basement structure layer.

[0011] The waterproof connection assembly includes an anchor plate and a pre-embedded bracket. The anchor plate has a through hole at its center. An anti-buoyancy anchor rods extending from the upper side of the concrete anchor body pass through the through hole of the anchor plate. The pre-embedded bracket is a frame structure. The pre-embedded bracket is wrapped around the outside of the anchor plate. The lower end of the pre-embedded bracket extends into the concrete anchor body of the building's basement structure layer.

[0012] The polymer cement waterproof mortar layer and the fine stone concrete protective layer are laid sequentially on the concrete anchor body of the building's basement structure, and the polymer cement waterproof mortar layer and the fine stone concrete protective layer completely cover the waterproof connection components.

[0013] Based on the above technical solution, the present invention can be further improved as follows.

[0014] Furthermore, a polymer cement waterproof mortar layer, a self-adhesive polymer modified bitumen waterproof membrane, a base slab waterproof layer, and a fine stone concrete protective layer are sequentially laid on the upper side of the concrete cushion layer.

[0015] Furthermore, the upper surface of the concrete anchor body in the building's basement structural layer is higher than the upper surface of the concrete pad layer, and the concrete pad layer and the concrete anchor body are sealed with sealant.

[0016] Furthermore, the pre-embedded support includes six horizontal bars and several vertical bars. The six horizontal bars are divided into two groups, which are distributed vertically. The anchor plate is located between the two groups of horizontal bars. The three horizontal bars in the same group are connected end to end to form a closed triangular frame. The two groups of horizontal bars form a triangular frame and are fixedly connected by several vertical bars. The lower ends of the several vertical bars extend into the concrete anchor body of the building's basement structure layer.

[0017] Furthermore, the lower end of the longitudinal rod is provided with a bend that bends in the radial direction towards the anti-buoyancy anchor rod.

[0018] Furthermore, the waterproof connection assembly also includes two self-locking nut anchors, which are respectively engaged with the anti-buoyancy anchor rod. The two self-locking nut anchors are located on the upper and lower sides of the anchor plate, and respectively abut against the upper and lower end faces of the anchor plate.

[0019] This waterproof connection structure for anti-buoyancy anchor nodes solves the technical problems of discontinuous waterproofing and easy leakage in traditional anti-buoyancy anchor nodes through structural innovation and material synergy. It combines high reliability, convenient construction and economy, and is suitable for complex underground engineering environments.

[0020] Compared with existing technologies, the waterproof connection structure of this anti-buoyancy anchor node has the following significant advantages:

[0021] (1) Multi-layered collaborative protection: a four-fold waterproof barrier is formed by sealant (filling the gap between the concrete pad and the anchor body), polymer cement waterproof mortar layer (covering the anchor plate and bracket), self-adhesive waterproof membrane (fully laid with continuous overlap) and fine stone concrete protective layer (mechanical protection), which completely blocks the seepage path and reduces the risk of leakage by 100%.

[0022] (2) Enhanced structural stability: The triangular frame welded structure composed of six horizontal bars and three vertical bars of the pre-embedded bracket disperses the stress on the anchor plate, improves the resistance to horizontal displacement, and avoids deformation or displacement caused by stress concentration in traditional anchor plates.

[0023] (3) Optimize the pre-embedded depth of the longitudinal bar. The lower end of the longitudinal bar should be ≥300mm deep into the concrete anchor body to ensure that the bracket is rigidly connected to the main structure and the horizontal deviation of the anchor plate installation is ≤3mm.

[0024] (4) Construction efficiency and cost optimization, standardized modular installation: The pre-embedded bracket adopts the factory prefabrication and on-site assembly mode, which shortens the construction cycle by 30% and reduces labor costs by 20%.

[0025] (5) High material compatibility: The sealant and waterproof membrane are highly compatible and can be seamlessly bonded without special treatment, reducing rework rate.

[0026] (6) Improved long-term durability: Circular reinforcing ribs are installed around the through holes of the anchor plate to prevent cracking at the edges of the steel plate; steel wire mesh is installed inside the fine stone concrete protective layer to improve crack resistance. The fully enclosed waterproof structure avoids future leakage repairs and reduces overall maintenance costs. Attached Figure Description

[0027] Figure 1 This is a cross-sectional view of the usage state of the waterproof connection structure of the anti-buoyancy anchor node in Embodiment 1.

[0028] Figure 2 yes Figure 1 Enlarged view of part A.

[0029] Figure 3 yes Figure 1 Enlarged view of part B.

[0030] Figure 4 This is a perspective view of the anti-buoyancy anchor and the pre-embedded support in Embodiment 1 of the waterproof connection structure of the anti-buoyancy anchor node.

[0031] Figure 5 This is a perspective view of the anti-buoyancy anchor and the pre-embedded support in Embodiment 2 of the waterproof connection structure of the anti-buoyancy anchor node.

[0032] Figure 6 This is a front view of the anti-buoyancy anchor and the pre-embedded bracket in Embodiment 2 of the waterproof connection structure of the anti-buoyancy anchor node.

[0033] Figure 7 This is a front view of the anti-buoyancy anchor and the pre-embedded bracket in Embodiment 3 of the waterproof connection structure of the anti-buoyancy anchor node.

[0034] Explanation of the labels in the diagram:

[0035] Anti-buoyancy anchor - 100; Anchor plate - 210; Through hole - 211; Embedded bracket - 220; Horizontal bar - 221; Vertical bar - 222; Bending - 223; Self-locking nut anchor - 230; Concrete anchor body - 300; Concrete cushion layer - 400; Polymer cement waterproof mortar layer - 510; Self-adhesive polymer modified bitumen waterproof membrane - 520; Base slab waterproof layer - 530; Fine stone concrete protective layer - 540. Detailed Implementation

[0036] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0037] The terms “vertical,” “horizontal,” “left,” “right,” and similar expressions used in this document are for illustrative purposes only and do not represent the only possible implementation.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0039] Example 1

[0040] Please see Figures 1 to 4 .

[0041] The waterproof connection structure of this anti-buoyancy anchor node includes an anti-buoyancy anchor 100, a waterproof connection component, a polymer cement waterproof mortar layer 510, and a fine stone concrete protective layer 540.

[0042] The lower end of the anti-buoyancy anchor rod 100 extends into the concrete anchor body 300 of the building's basement structural layer, and a concrete pad layer 400 is also poured on the side of the concrete anchor body 300 of the building's basement structural layer.

[0043] On the upper side of the concrete cushion layer 400, a polymer cement waterproof mortar layer 510, a self-adhesive polymer modified bitumen waterproof membrane 520, a base slab waterproof layer 530, and a fine stone concrete protective layer 540 are laid in sequence. The upper surface of the concrete anchor body 300 of the building's basement structural layer is higher than the upper surface of the concrete cushion layer 400, and the concrete cushion layer 400 and the concrete anchor body 300 are sealed with sealant (not shown in the figure).

[0044] The waterproof connection assembly includes an anchor plate 210 and a pre-embedded bracket 220. The anchor plate 210 has a through hole 211 at its center, and the anti-buoyancy anchor rod 100, which extends from the upper side of the concrete anchor body 300, passes through the through hole 211 of the anchor plate 210.

[0045] The embedded support 220 is a frame structure, which includes six horizontal bars 221 and three vertical bars 222. The six horizontal bars 221 are divided into two groups, which are distributed vertically. The anchor plate 210 is located between the two groups of horizontal bars 221. The three horizontal bars 221 in the same group are connected end to end to form a closed triangular frame. The triangular frame formed by the two groups of horizontal bars 221 is fixed by welding with three vertical bars 222. The lower ends of the three vertical bars 222 extend into the concrete anchor body 300 of the building's basement structural layer.

[0046] The polymer cement waterproof mortar layer 510 and the fine stone concrete protective layer 540 are laid sequentially on the upper side of the concrete anchor body 300 of the building's basement structure layer, and the polymer cement waterproof mortar layer 510 and the fine stone concrete protective layer 540 completely cover the waterproof connection components.

[0047] Example 2

[0048] Please see Figures 5 to 6 .

[0049] The only difference between this embodiment and Embodiment 1 is that the lower end of the longitudinal rod 222 of the embedded support 220 is provided with a bend 223 that bends radially toward the anti-buoyancy anchor rod 100, and the bend 223 is also located within the concrete anchor body 300 of the building's basement structural layer. The bend 223 of the longitudinal rod 222 can increase the connection strength between the embedded support 220 and the concrete anchor body 300.

[0050] Example 3

[0051] Please see Figure 7 .

[0052] The only difference between this embodiment and Embodiment 1 is that the waterproof connection assembly also includes two self-locking nut anchors 230, which are respectively engaged with the anti-buoyancy anchor rod 100. The two self-locking nut anchors 230 are located on the upper and lower sides of the anchor plate 210, and respectively abut against the upper and lower end faces of the anchor plate 210. The outer diameter of the self-locking nut anchor 230 is larger than the diameter of the through hole 211 of the anchor plate 210.

[0053] The above descriptions are only three embodiments of this utility model. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the principle of this utility model, and these should also be considered to fall within the protection scope of this utility model.

Claims

1. A waterproof connection structure of a anti-floating anchor rod node, characterized in that: comprising an anti-floating anchor rod (100), a waterproof connection assembly, a polymer cement waterproof mortar layer (510) and a fine stone concrete protective layer (540); the lower end of the anti-floating anchor rod (100) extends into the concrete anchoring body (300) of the building basement structure layer, and a concrete cushion layer (400) is also poured beside the concrete anchoring body (300) of the building basement structure layer; the waterproof connection assembly comprises an anchoring plate (210) and a pre-embedded support (220), a through hole (211) is formed in the center position of the anchoring plate (210), the anti-floating anchor rod (100) extending out of the upper side of the concrete anchoring body (300) penetrates through the through hole (211) of the anchoring plate (210), the pre-embedded support (220) is a frame structure, the pre-embedded support (220) is wrapped outside the anchoring plate (210), and the lower end of the pre-embedded support (220) extends into the concrete anchoring body (300) of the building basement structure layer; the polymer cement waterproof mortar layer (510) and the fine stone concrete protective layer (540) are sequentially laid on the upper side of the concrete anchoring body (300) of the building basement structure layer, and the polymer cement waterproof mortar layer (510) and the fine stone concrete protective layer (540) completely cover the waterproof connection assembly.

2. The waterproof connection structure of the anti-floating anchor rod node according to claim 1, characterized in that: the upper side of the concrete cushion layer (400) is sequentially laid with a polymer cement waterproof mortar layer (510), a self-adhesive polymer modified asphalt waterproof coiled material (520), a bottom plate waterproof layer (530) and a fine stone concrete protective layer (540).

3. The waterproof connection structure of the anti-floating anchor rod node according to claim 2, characterized in that: the upper end surface of the concrete anchoring body (300) of the building basement structure layer is higher than the upper end surface of the concrete cushion layer (400), and the concrete cushion layer (400) and the concrete anchoring body (300) are sealed through sealing paste.

4. The waterproof connection structure of the anti-floating anchor rod node according to claim 1, characterized in that: the pre-embedded support (220) comprises six horizontal rods (221) and a plurality of vertical rods (222), the six horizontal rods (221) are evenly divided into two groups, the two groups of horizontal rods (221) are distributed upward and downward, the anchoring plate (210) is located between the two groups of horizontal rods (221), three horizontal rods (221) in the same group are sequentially connected to form a closed triangular frame, the two groups of horizontal rods (221) are fixedly connected through the plurality of vertical rods (222), and the lower ends of the plurality of vertical rods (222) extend into the concrete anchoring body (300) of the building basement structure layer.

5. The waterproof connection structure of the anti-floating anchor rod node according to claim 4, characterized in that: the lower end of the vertical rod (222) is provided with a bending (223) bending in the radial direction of the anti-floating anchor rod (100).

6. The waterproof connection structure of the anti-floating anchor rod node according to claim 1, characterized in that: ​ ​ ​ ​ ​ ​ ​ ​ The waterproof connecting assembly further comprises two self-locking nut anchors (230) matched with the anti-floating anchor rod (100) respectively, and the two self-locking nut anchors (230) are located on the upper and lower sides of the anchoring plate (210) and abut on the upper and lower end faces of the anchoring plate (210) respectively.

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